Lard-lamp



J. T. CREIGHTON.

Lard Lm p. No. 2,751. Patented Aug. 11, 1 842.

N. PETKRS. Pham-Lnbogrnphor. Waslli n nnnnn c.

UNITED STATES PATENT OFFICE.

JOHN T. GREIGHTON, OF ALEXANDRIA, DISTRICT OF COLUMBIA.

LARD-LAMP.

Specification of Letters Patent No. 2,751, dated August 11, 1842.

To all whom it may concern:

Be itknown that I, J OHN T. CREIGHTON, of the town of Alexandria and District of Columbia, have invented a new and useful Improvement in the Construction of Lamps for Burning Lard, which is described as follows, reference being had to the annexed drawings of the same, making part of this specification.

Figure 1 is a View of the lamp, flat side of the wick holder, conductors, and loop. Fig. 2 is a vertical edge view. Fig. 8 is a plan of the cap.

Similar letters refer to corresponding parts. I i

The lamp A, cap B and wick tubes C are made similar to others in use.

My improvement is in the conductors and in combining with the central conductors a sliding clasp which embraces them and the wick.

The central conductor is a fiat piece of copper folded in the middle and spread outward at the extremities forming two springs D which, are placed downward in the lamp and encircled by a copper loop, link, or clasp E, between which and said spring conductors the wicks are placed, the folded part of said conductor being placed and secured between the flat wick tubes and extending above them about an eighth of an inch.

Two narrow side conductors E are brazed or soldered to the outside of the wick tubes with their upper ends extending above the top of the wick tubes about a sixteenth of an inch and their lower ends against the outside of and below the aforesaid sliding clasp.

The wicks may be of any required length, extending through the wick tubes and clasp and below the conductors, and coiled around in the bottom of the lamp, being drawn up as they burn away by any suitable means, the sliding clasp being raised with them so that all or nearly all of the wicks may be consumed.

The cap is perforated with two additional oblong apertures G or air holes near the side conductors.

The peculiar advantage derived from the use of the aforesaid sliding clasp is that it can be raised with the wicks as they'are consumed and raised keeping them always in contact with the spring heaters which cannot be effected in Southworths lard lamp.

What I claim as my invention and which I desire to secure by Letters Patent is The manner of holding the wicks by means of the sliding clasp and the central spring conductors, constructed, arranged and operated in the manner set forth, or in any other mode analogous thereto.

JOHN T. CREIGHTON.

Witnesses:

WVM. P. ELLIOT, EDM. MAHER. 

